“A Smart Grid Robust Optimization Framework”

AbstractThis paper presents a robust optimization framework that integrates three energy sources for superior smart grid economical and environmental operations. The renewable hydro and wind energy sources as well as nonrenewable coal-fired steam energy source are considered to be connected via an asynchronous link. The robust control framework treats the hydro and steam power plants as controllable energy sources while it treats the wind turbine as an exogenous energy source. The proposed robust system framework ensures optimal smart grid power generation for acceptable load demand tracking or for ecological benefits under wind power and model uncertainties. Simulation results demonstrate the efficiency of the proposed framework for superior smart grid power source integration under uncertain operation conditions.

“An Integer Programming Power Optimization in Storage Systems”

AbstractThis paper presents a linear integer programming framework for effective power management in storage systems. A sample memory system with different data banks is considered for optimal energy consumption during data operations by manipulating the data among banks. The memory bank four-level power state schemes, namely, active, stand-by, nap, and power down states, are included for superior power management of the storage system by formulating a linear integer optimization framework that includes plausible data manipulations, energy consumption levels, data migration, and compression options. The numerical results illustrate the efficiency of the proposed framework in terms of power management of storage systems with respect to available approaches with two-level power state operations

Karyotype of Pseudorasbora parva (Temminck and Schlegel 1846) (Pisces, Cyprinidae) in Kizilirmak River, Turkey

WOS: 000268521900015Karyotype of Pseudorasbora parva in the Kizilirmak River, Turkey, was investigated by kidney tissue. Diploid chromosome number was 2n = 50. The karyotype consisted of 7 pairs of metacentric, 10 pairs of submetacentric and 8 pairs of subtelocentric chromosomes, and the fundamental number (NF) was 100. No heteromorphic sex chromosomes were found

Sensorineural Hearing Loss in Non-depressed Essential Tremor Cases and Controls: A Clinical and Audiometric Study

<p><strong>Background</strong>: Patients with essential tremor (ET) have an increased prevalence of hearing loss, and depression is a confounding issue for both conditions. We assessed hearing loss in non‐depressed ET patients and controls using a questionnaire and audiometric tests.</p><p><strong>Methods</strong>: The study included 34 patients with ET and 45 volunteers were included. Both groups were asked if they had hearing loss, and pure tone audiometry, speech recognition threshold, tympanogram, short increment sensitivity index (SISI), tone decay, and otoacoustic emission audiological tests were conducted.</p><p><strong> Results</strong>: Seventeen subjects (50.0%) in the patient group answered &ldquo;yes&rdquo; to the question &ldquo;Do you have hearing loss?&rdquo; compared to one (2.2%) subject in the control group (p&lt;0.001). The tone decay values of the right ear at 4,000 Hz were higher in the patient group. The number of subjects in which the otoacoustic emissions could not be obtained in the right ear was higher in the ET patients (p = 0.005).</p><p><strong>Discussion</strong>: The results support the presence of a cochlear pathology in ET and may indicate that ET and sensorineural hearing loss may be components of a common disease process.</p

Synthesis, structural, magnetic and thermal studies of copper(II) 5,5-diethylbarbiturate complexes with nicotinamide, 2,2′-bipyridine and triethanolamine

Three new copper(II) 5,5-diethylbarbiturate (barb) complexes of nicotinamide (nia), 2,2′-bipyridine (bpy) and triethanolamine (tea), trans-[Cu(barb)2(nia)2]⋅2H2O (1), cis-[Cu(barb)2(bpy)]⋅3H2O (2) and [Cu2(barb)2(tea)2]⋅2H2O (3), were synthesized and characterized by elemental analysis, spectroscopic (UV-Vis and FTIR) and magnetic moment measurements. Single crystal X-ray crystallographic measurements showed that 1 and 2 are mononuclear, while 3 is binuclear, in which two copper centers were bridged by deprotonated ethanol groups of two tea ligands. The barb ligand in these complexes is a bidentate N, O-donor. Thermal analysis (TG/DTA) studies in air indicated that the complexes first dehydrated and then the decomposition of nia, bpy or tea ligands occurred. The last exothermic stage was associated with degradation of the barb moiety to yield CuO as the end product

Optic Disc Pit with Sectorial Retinitis Pigmentosa

Sectorial retinitis pigmentosa (RP) and optic disc pit (ODP) are rare clinical conditions. We present a 40-year-old woman with a history of mild night blindness and decreased vision in the right eye for about 5 years. Fundus examination revealed retinal pigmentary changes in the superior and inferotemporal sectors covering the macula and reduced arterial calibre and ODP at the temporal edge of the optic disc. In addition, fundus autofluorescence, spectral-domain optical coherence tomography, fluorescein angiography, and multifocal electroretinogram scans confirmed these clinical findings. Visual acuity was decreased due to an atrophic-appearing foveal lesion. No intervention was suggested because of the poor visual potential. To the best of our knowledge, the present study is the first to describe coexistent optic disc pit and sectorial RP in the superior and inferotemporal sectors covering the macula in the same eye with figures

Novel 5-fluorouracil complexes of Zn(II) with pyridine-based ligands as potential anticancer agents

A series of novel Zn(II) complexes of 5-fluorouracilate (5-FU), namely (Zn(5-FU)(2)(bpy)] (1), [Zn(5-FU)(2)(phen)] (2), [Zn(5-FU)(2)(dpya)]center dot H2O (3), [Zn(5-FU)(2)(bpyma)]center dot 2H(2)O (4) and [Zn(5-FU)(2)(terpy)]center dot H2O(5), were synthesized and structurally characterized by spectroscopic methods and X-ray crystallography. 5-FU was coordinated to Zn(II) via the deprotonated N3 site and also presented the N1 and N3 linkage isomerism in 4 and 5 due to its tautomerism. The antiproliferative activity of the complexes was studied against lung (A549), breast (MDA-MB-231), colon (HCT116) and prostate (DU145) cancer cell lines. Complexes 1, 4 and 5 except 2 and 3 showed potent growth inhibitory activity towards selected cancer cells. Remarkably, 4 was highly cytotoxic towards A549 and MDA-MB-231 cell lines, being more active than the clinical drugs cisplatin and 5-FU. In addition, 4 was not toxic to normal lung cells (BEAS-2B). The complex exhibited a significantly high affinity towards DNA as assessed by gel electrophoresis and DNA docking. The mechanistic studies of 4 in A549 cells indicated that the complex induced apoptotic cell death as evidenced via caspase 3/7 activity, Bcl2 inactivation, annexin V and DAPI/PI staining. 4 further elevated the levels of reactive oxygen species (ROS), depolarized mitochondria and enhanced the expression of gamma-H2AX, thus contributing to its remarkable anticancer activity

Türkiye'nin Kuzey Doğu Anadolu Bölgesi Kars Platosundaki Tatlı Su Balıklarında Ligula intestinalis Enfeksiyonları

Amaç: Araştırma Türkiye'nin Kuzey Doğu Anadolu Bölgesi'nde bulunan Kars Platosunda yer alan dere ve çaylardaki tatlı su balıklarında Ligula intestinalis parazitlerinin yaygınlığını ve bunların neden olduğu enfeksiyonları bildirmek amacıyla yapıldı. Yöntemler: Çalışma Nisan-Temmuz 2011 tarihleri arasında yürütüldü. Materyali oluşturan balık örnekleri serpme ağ ile avlamak süratiyle yakalandı. Ligula intestinalis pleroserkoidleri yönünden avlama sonrası hemen parazitolojik olarak incelendi. Bulgular: Araştırmada 310 adet akarsu balığı Ligula intestinalis plerocercoidi yönünden incelendi. Bu balıkların %55.8'ini Capoeta capoeta, %24.2'sini Squalius cephalus, %11.0'ini Alburnus filippii, % 5.8'ini Barbus plebejus lacerta ve %3.2'sini ise Alburnoides bipunctatus türleri oluşturdu. İncelenen balıkların %2.6 (8/310)'ında L. intestinalis plerocercoidi saptandı. Bu parazitin görülme oranı Barbus plebejus lacerta'da %38.9 (7/18) ve Capoeta capoeta'da %0.6 (1/173) olarak bulundu. Diğer üç balık türü olan Squalius cephalus, Alburnus filippii ve Alburnoides bipunctatus'ta ise cestod larvasına rastlanmadı. Sonuç: Bu çalışmada Kars Platosunda yer alan Kars Çayı ve kollarındaki tatlı su balıklarında L. intestinalis plerocercoidleri ilk olarak bildirildiObjective: This study was conducted to determine the prevalence of Ligula intestinalis and infections caused by these on freshwater fish in rivers and streams in the Kars plateau of north-eastern Anatolia, Turkey. Methods: This research was conducted between April and July 2011. Fish samples were caught via a casting net and an electro-shocker. The samples were immediately examined to determine the prevalence of L. intestinalis plerocercoids. Results: In this research, 310 stream fishes were studied to determine the prevalence of L. intestinalis plerocercoids. Detected fishes included 55.8% Capoeta capoeta, 24.2% Squalius cephalus, 11.0% Alburnus filippii, 5.8% Barbus plebejus lacerta, and 3.2% Alburnoides bipunctatus. L. intestinalis plerocercoids were found in 2.6% (8/310) of the examined fishes. The percentage of this parasite was found to be 38.9% (7/18) on B. plebejus lacerta and 0.6% (1/173) on C. capoeta. L. intestinalis plerocercoids were not observed on the other three fish species (S. cephalus, A. filippii, and Al. bipunctatus).Conclusion: In this study, L. intestinalis plerocercoids were reported for the first time in the Kars stream and its distributaries on the Kars plateau in north-eastern Anatolia, Turkey